Home / 681,713.76-1,020,741.68-381,338.88

Finding the Fourth Proportional to 681,713.76, 1,020,741.68 and 381,338.88

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Solution

The fourth proportional to 681,713.76, 1,020,741.68 and 381,338.88 is: 570,985.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,713.76 : 1,020,741.68 = 381,338.88 : x
  2. Step 2: Convert to fraction form
    681,713.76/1,020,741.68 = 381,338.88/x
  3. Step 3: Cross multiply
    681,713.76x = 1,020,741.68 × 381,338.88
  4. Step 4: Simplify right side
    681,713.76x = 389,248,489,020.52
  5. Step 5: Solve for x
    x = 389,248,489,020.52/681,713.76
  6. Step 6: Final answer
    x = 570,985.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.